APR breakout group: LectureTopic: Knee Joint

Lois BorekScott DunhamAlfredo Munoz

Betsy OttEric Sun

Tony Weinhaus

Why did we choose this topic?• Students have trouble understanding the knee joint• It pulls the muscular and skeletal systems together• It shows the function of both systems• It applies the functions of different connective tissues• APR provides animations for action, a good animation

on synovial joint, and attachments in dissection view• It helps students deduce what happens (show

attachment on anterior, based on that they can say whether it would be extension or flexion)

Definition and Overview

• Synovial joints– Definition– Parts– Classifications

Animation link

Overview of synovial joints

Question 1

Which of the following describes the knee joint?

A. Pivot

B. Ball and socket

C. Hinge

D. Ellipsoidal

Dense Regular Connective Tissue

v

Fibrocartilage

Dense Irregular Connective Tissue

Hyaline Cartilage

• Add muscle and bone tissues after other histology slides– Skeletal muscle tissue– Compact bone tissue

Question 2

Which of the following is found in synovial joints?

A. Hyaline cartilage

B. Fibrous capsule

C. Synovial membrane

D. All of the above

Knee Joint

Surface projection of patella

Surface projection of patella ligament

Surface projection of tibial tuberosity

Anterior view

Fibular (lateral) collateral ligament

Tibial (medial) collateral ligament

Lateral meniscus

Medial meniscus

Anterior cruciate ligament

Posterior cruciate ligament

Posterior View

Posterior cruciate ligament

Anterior cruciate ligament

Movement/Forces

• Flexion– Muscle tendons/tissues– Origins– Insertion

• Extension– Muscle tendons/tissues– Origins– Insertion*Histology slides from APR

Surface projection of hamstring tendons

Quadriceps femoris muscle

Insertion of quadriceps femoris muscle

Hamstring muscles

Biceps femoris muscle

Semimembranosus muscle

Semitendinosus muscle

Clinical

• Torn ACL– Meniscus– Fibro cartilage

Add image of torn ACL if available!

Summary/Quiz

• Add quiz questions

Add labeled exercise for quiz